Finding the Fourth Proportional to 1,103.89, 1,655.98 and 363.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.89 : 1,655.98 = 363.58 : x
2. Step 2: Convert to fraction form
   1,103.89/1,655.98 = 363.58/x
3. Step 3: Cross multiply
   1,103.89x = 1,655.98 × 363.58
4. Step 4: Simplify right side
   1,103.89x = 602,083.58
5. Step 5: Solve for x
   x = 602,083.58/1,103.89
6. Step 6: Final answer
   x = 545.42